Leaves browning between veins, straight up the middle: yellowing as well, pics included

[Uth33]

So one of my plants is a bit shorter than the rest, and the fan leaves are yellowing and turning brown up the centre and spreading out between thethe veins. They are 3 weeks into flowering, and although I noticed it about 5 weeks back it has no improved. Pics are included, and missing information can be provided.

 

[Chris Scorpio]

Pic of the hole plant really helps, and the info in this post is pretty important

How to Ask for Grow Support

And welcome aboard

 

[Uth33]

I will get some full pics of the plant today and post them. This particular plant also seems a little bit stunted compared to the others, although every one has been grown the same.